eeee eefe eefl eele eero efeo effi efil efor eiei eier eile eire elee elef eleo eler elfe elfi elie elif elil elio elle elli ello eloi elro eoir eole eoli eolo eore eori eorl erei erel erer erie eril erio erle erli erll eroe eroi erol eroo erre erro feel feer fefe feff fefi fefo feie feil feio feir fele felf feli fell felo feof fere fero ferr ffee ffff ffii ffrr fief fiel fier fife fiff fifi fifo fiii fiil file fili fill filo fioe fior fire flee fler flii floe floo flor foer fofo foie foil fole foli foll folo folr foof fool for- fore fori forl foro forr free frei freo frie fril frio froe frol ieie ieio iele iere ieri ifel ifer ifil ifor ifrf ifri iiie iiii iiio iioi iioo ile- ileo iler ilie ilio ilir ill- ille illi illo iloo ilre ioee ioel ioii ioio iole iolo ioof iooi iooo iore iori iree irel irer irfe iri- irie iril irio irre irri leef leel leer lefe leff leie leif leil leio leir lele leli lell lelo leof leoi leor lere lero lief liel lier life liff lifl lifo liii liir lile lili lill lilo lio- lior lire liri lirl liro lirr llef llll lloo loei lofe loff lofi loif loir lole loli loll lolo looe loof lool loor lore lori loro lrif lroi lrrr o-eo oeil oele oere ofer off- offe offo offr ofor ofre oier oiii oire ole- olef olei oleo oler olfe olie olio olle olli ollo olof olor ooer ooff oolo oooo oore ore- orel oreo orer orfe orff orfi ori- orie orif oril orio orle orlo oro- oroe orof oror orri orro reef reel refe reff refi refl refr reif reii reil reir rele rell relo reof reol rere reri rero rfef rffl rief riel rier rife riff riif rile rill rilo riol rire riri rlee rlef rlif roel roer rofe roff rofl rofo roif roil roio roir role rolf roll rolo roof rooi rool roor rore rori roro rrif rrle rrrr